> > I recently set up a switch (Linksys managed switch - horrible horrible > > management interface!!!) and am sure I saw something in there about a > > protocol for the device plugged into that port to automatically > > configure the switch end of the port wrt vlan trunking and tagging... > > > > Does such a protocol exist, or did I just imagine it? > > It could be done in one of several ways. For example, the switch might be > configured so that particular MAC addresses or ether protocols are > automatically assigned to certain VLANs. It could be done as part of > 802.1X authentication. It could be GVRP (part of 802.1Q). Thanks. I did end up finding GVRP, but apparently it's not supported by the Cisco (IOS not COS) switches which I am using (the only reason I mentioned Linksys is that that is where I first saw the possibility) VTP (VLAN Trunking Protocol) is the protocol supported by the Cisco switches that I have access to. > The third doesn't seem to be well supported, though Google does throw up a > fair number of hits. Whether you would actually want to trust arbitrary > things being plugged in to run GVRP is another question... That's what I found too... I wonder how useful a VTP/GVRP agent for Linux would be... Thanks James
